Apologies if this idea has been posted, I couldn't find the search feature.
Boston receives: Harrison Barnes, Alex Len
Sacramento receives: Al Horford, 2022 1st Round pick
Why for Boston?
We get a guy who can shoot (41% from 3 this year, 38% for his career), is a switchable defender, and a reportedly a great locker room guy. He has 1 year left on after this one at $18.3m. This deal would also get us under the tax since we'd be shedding about $3m in salary. Alex Len is a throw who could give us spot minutes at center.
Why for Sacramento?
It's been rumored that they are finally ready to move some of their players like Harrison and Hield. I'm not sure what the market value for Harrison is, but I think a 1st is a solid return. They can waive Horford and save about $7m when it's all said and done.